Stop fantasizing about money first of all.
The reason why you create music is because you love it remember? The way I did was tell myself, I'm not going to make any money for the first year. **but actually did**
I focused on creating a catalog of music with expanding genres to attract a larger fanbase plus I love crossing over because I love the challenge and it forces you to learn. I'm telling you, every time you master a technique you are worth that much more and that is money. The goal is to be damn good at making music. You want listeners to feel the hairs on the back of their neck while listening to your beats because it's that infectious.
I also had another job to finance my beat business. If you live at home take advantage of it because one day you'll have to pay rent.
I know producers that are so concerned about making money that it actually effects the production because they produced stressed and they don't even know it.
Don't ever pretend you know everything and be humble, learn from other producers. It's like those Kung Fu movies where the fighter has to go through so much to be a premier fighter. During training the person endures defeat, humiliation, physical punishment, etc.
Point is, you need to put in the time. Selling beats is a patience game, and if your beats are good and master marketing your product then YOU WILL sell beats, just don't get frustrated if you don't sell anything for the first several months.